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ORIGIN

This 1980 Porsche 911SC coupe underwent a conversion in the mid-1980s that included installation of a turbocharged 3.3L flat-six and drivetrain from a period 930 as well as Turbo and Ruf bodywork. In 2013, the seller purchased the car from the owner of a local Porsche repair shop who had owned it for 15 years. Subsequent work included a glass-out repaint in black, an interior overhaul with GTS Classic seats and RS-style leather door panels, and installation of a shortened G50 5-speed manual transaxle. Further additions consist of 993 Turbo front brakes, 964 3.6 Turbo rear brakes, Ruf wheels with Toyo R888 tires, and rebuilt gauges. This 911 is offered with partial records and a clean New York title in the seller’s name.

The 1980s makeover included installation of 930 Turbo fenders and quarter panels as well as a Ruf valance over a front-mounted oil cooler. A turbo tail replaced the stock engine lid and European “bumperettes” were sourced.

More recently, the seller commissioned a glass-out repaint in black followed by new window and door seals. The rubber body trim was replaced as were the windshield and lighting, including headlights converted to H1 LEDs with amber Bosch lenses. The fenders, hood, front bumper, and mirrors were wrapped in XPEL Ultimate self-healing clear film after the repaint.

A walk-around video is provided above. Ruf Turbo 17″ wheels are finished in Porsche Slate Gray and mounted with Toyo R888 tires from 2015. Brakes from a 993 Turbo are fitted in the front along with 964 3.6L Turbo components in the rear. The pads and rotors are said to have been replaced within the last 1,000 miles.

The cabin features an RS-style carpet kit and leather door panels as well as GTS Classic bucket seats paired with Schroth 4-point belts connected to a harness bar. A black headliner was installed to match the new black leather dashboard. The stereo has been removed, while heater and fresh air controls are said to work properly.

The gauges were rebuilt with new glass and bezels and recalibrated by North Hollywood Speedometer Repair. The overhauled instruments include an odometer which shows 79k miles, with total mileage unknown. 3k miles have been reportedly completed in five years of ownership.

The turbocharged 930 3.3L flat-six was installed in the 1980s and can be seen in the video above. Modifications include a Ruf intercooler and oil cooler as well as a 1-bar spring installed in the wastegate.

Photos in the gallery show compression tests displaying 95-98 psi across all six cylinders and an oil change was performed in spring 2018.

A warm-start video can be seen above. A 5-speed G50 gearbox was shortened and rebuilt by Turbo Kraft in 2015 and installed with a Stage 1 HD clutch kit from Patrick Motorsports paired with a stock Sachs disc. Suspension modifications include 930 trailing arms and coilovers as seen in the gallery below.